Operation Manual

2 FT-7900R OPERATING MANUAL
General
Frequency Range: RX: 108.000 - 520.000 MHz,
700.000 - 999.990 MHz (Cellular Blocked)
TX: 144.000 - 148.000 MHz or 144.000 - 146.000 MHz,
430.000 - 450.000 MHz or 430.000 - 440.000 MHz
Channel Steps: 5/10/12.5/15/20/25/50/100 kHz
Modes of Emission: F3E, F2D, F2A
Antenna Impedance: 50 Ohms, unbalanced (Antenna Duplexer built-in)
Frequency Stability: ±5 ppm @ 14 °F ~ +140 °F (–10 °C ~ +60 °C)
Operating Temperature Range: –4 °F ~ +140 °F (–20 °C ~ +60 °C)
Supply Voltage: 13.8 VDC (±15 %), negative ground
Current Consumption (Approx.): RX: 0.5 A (Squelched)
TX: 8.5 A (144 MHz, 50 W)
9 A (430 MHz, 45 W)
Case Size (W x H x D): 5.5” x 1.6” x 6.6” (140 x 41.5 x 168 mm)
(w/o knobs & connectors)
Weight (Approx.): 2.2 lb. (1 kg)
Transmitter
Output Power: 50/20/10/5 W (144 MHz)
45/20/10/5 W (430 MHz)
Modulation Type: Variable Reactance
Maximum Deviation: ±5 kHz, ±2.5 kHz
Spurious Radiation: At least –60 dB below
Microphone Impedance:2 kΩ
DATA Jack Impedance: 10 kΩ
Receiver
Circuit Type: Double-conversion superheterodyne
Intermediate Frequencies: 45.05 MHz/450 kHz
Sensitivity: 0.8 μV (TYP) for 10 dB SN (108 - 137 MHz, AM)
0.2 μV for 12 dB SINAD (137 - 150 MHz, FM)
0.25 μV for 12 dB SINAD (150 - 174 MHz, FM)
0.3 μV (TYP) for 12 dB SINAD (174 - 222 MHz, FM)
0.25 μV (TYP) for 12 dB SINAD (222 - 300 MHz, FM)
0.8 μV (TYP) for 10 dB SN (300 - 336 MHz, AM)
0.25 μV for 12 dB SINAD (336 - 420 MHz, FM)
0.2 μV for 12 dB SINAD (420 - 520 MHz, FM)
0.4 μV (TYP) for 12 dB SINAD (800 - 900 MHz, FM)
0.8 μV (TYP) for 12 dB SINAD (900 - 999.99 MHz, FM)
Squelch Sensitivity: Better than 0.16 μV
Selectivity (–6dB/–60dB): 12 kHz/30 kHz
Maximum AF Output: 2 W @ 8 Ω for 10% THD
AF Output Impedance: 4-16 Ω
Specifications are subject to change without notice, and are guaranteed within the 144 and
430 MHz amateur bands only. Frequency ranges will vary according to transceiver ver-
sion; check with your dealer.
SPECIFICATIONS